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2007 Mercedes-Benz GL450 Question: Weird sound in the cooling system when I turn off the engine

 

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bethencourt, Beverly Hills, CA, February 14, 2012, 08:47
 Rookie

I bought the car a few weeks ago and didn't notice it until a couple of days ago. When I turn off the engine, after a few seconds I hear a "ffffffff" sound. like if it was releasing some kind of pressure. Any one has any idea of what it could be???
Thanks.

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  • Answer #1

    Godluv1 April 30, 2012, 17:27
     Rookie

    This sounds like it is the airmatic sytem that is releasing air from the air suspension. It's normal.

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    bethencourt, May 02, 2012, 15:47
     Rookie

    Thanks so much for your answer. What a relief :)

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